Figure 2
(Top row) Natural logarithm of instantaneous normalised enstrophy (Ω × (δ th /S L )2) fields: (left to right) case A, case B and case C (truncated domain). c T -isosurfaces are shown for c T = 0.1, 0.5, 0.7. (Bottom row) Instantaneous local flow topology fields: (left to right) case A, case B and case C (truncated domain).
